<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="css/login.css">
    <title>有利后台管理</title>
  </head>
  <body>
    <div class="background">
      <div class="login-box">
        <h3>有利后台登陆</h3>
        <div>
          <input id="username" type="text" name="username" placeholder="请输入你的用户名或手机号码" class="username">
          <p>用户名必须由6~20个数字或字母组成</p>
        </div>
        <div>
          <input id="password" type="text" name="password" placeholder="请输入你的密码" class="password">
          <p>输入的密码有误</p>
        </div>
        <div>
          <input id="checkbox" type="text" name="checkbox" placeholder="验证码" class="checkbox">
          <p>验证码有误</p>
        </div>
        <button>登陆</button>
        <p><a href="#">忘记密码？</a></p>
      </div>
    </div>
  </body>
</html>